From: Michael Matz <matz@suse.de>
To: Tehila Meyzels <TEHILA@il.ibm.com>
Cc: Daniel Berlin <dberlin@dberlin.org>,
dpatel@apple.com, gcc@gcc.gnu.org, gcc-patches@gcc.gnu.org,
Revital1 Eres <ERES@il.ibm.com>,
trevor_smigiel@playstation.sony.com,
Ulrich Weigand <Ulrich.Weigand@de.ibm.com>,
Victor Kaplansky <VICTORK@il.ibm.com>
Subject: Re: [RFC] Improve Tree-SSA if-conversion - convergence of efforts
Date: Mon, 06 Aug 2007 14:31:00 -0000 [thread overview]
Message-ID: <Pine.LNX.4.64.0708061532440.23011@wotan.suse.de> (raw)
In-Reply-To: <OF518A220D.E0270B9E-ONC225732F.0042D2FE-C225732F.004321C7@il.ibm.com>
Hi,
On Mon, 6 Aug 2007, Tehila Meyzels wrote:
> > in if-conv (or phi-opt), but in ssa-sink (or some similar transformation
> > which can or can not use value numbers and the like).
>
> OK.
>
> And what's your opinion WRT conditional loads/stores?
> Since you've sent your conditional store transformation patch,
> I guess the meaning could be rewriting it on the top of tree-if-conv.
Actually I'm not so sure about that. I found the phi-opt infrastructure
much better suited to do the necessary pattern matching, so I only
thought of the conditional store replacement as enabling transformation.
Also tree-if-conv only handles loops (and only inner ones), not general
conditional patterns. Something which might be fixable with some amount
of work, but the phi-opt infrastructure simply was already there.
Ciao,
Michael.
next prev parent reply other threads:[~2007-08-06 14:31 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-31 14:51 Tehila Meyzels
2007-07-31 15:12 ` Daniel Berlin
2007-07-31 15:14 ` Michael Matz
2007-08-06 12:16 ` Tehila Meyzels
2007-08-06 14:31 ` Michael Matz [this message]
2007-08-01 11:02 ` Tehila Meyzels
2007-08-01 15:27 ` Daniel Berlin
2007-08-01 18:52 ` Ayal Zaks
2007-08-01 19:59 ` Daniel Berlin
2007-09-12 22:10 ` trevor_smigiel
2007-09-13 10:07 ` Richard Guenther
2007-09-13 10:55 ` Michael Matz
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